Improvement in horse hat-forks



f and HENRY e. PORTER, or GRAND RAPIDS, MICHIGAN.

Leners Patmt1v0.j1o5,722,faad .my 26,1870. i

11i/renew;'Mam' 1N Holzer:v HAY-FORKS.

The Schedule referred to in these Letters Patent and making-part o f the same.

To whom 'it may concern:

Be it known that I, HENRY Gr. BORTER, of Grand Rapids, in the countyof Kent and State of Michigan, have inventeda new and useful Improvement in Hay- Elevators; and I dodeclare that the following isa true and accurate description thereof, reference being had to the accompanying drawing, and lto the letters of reference' marked thereon, and being a part of this specilicaton, in which- Figure 1 is a sectional elevation of my improved fork and snatch-pulley, as when hoisting;

Figures 2 and 3 show their position aft-er dumping;

' Figure" 3 is a side'elevation Aof the pulley.

Like letters indicate like palts in each lign-re.

The nature of this invention relates to an improved method-of elevating hay, and consists in 'a new and' peculiar har.poonfork,.thev tines of "which issue near the extremity thereof, enabling the operator to take a load froin4 the oor of the rack; .inl thepeculiar" .mechanism for .projecting the 'tines and for keeping them in that position untilthe fork -is elevated to the top of the barn, when `a tripper, projecting above its top,.strikes the carrier, disengages thel tines, and

'dnrnps theload.

In the draw'ing-` L y A represents my improved fork,jhe shank of which is a=metallic tube, slightly attened, and suspended from the hoist-rope B f At a, in tlie harp'oon-point, are pivoted the tines b, to which are pivoted the links c, connect-ing them `wit-h therod d, running up through the shank of the fork, which is open at one'side in its upper part.

shank.

To this lever is connected the, rod d by the link g.

c is a lever, pivoted at f, in the upper part of lthe.

h is a latclnembra'cing the head of the fork, to which it is pivoted.

-The head of' the fork is coveredv by a at plate,

through which projects upward a trip-rod, fi, pivot-'ed in the rear end of 'the latch. lhe.hoistrope is' led up over a pulley in a carrier, or over iixed pulley in the roof of theharm-but,

preferaby, l employ for this purpose the carrier patented by me J une 29, 1869,' thence down to a pulley at the door-sill of the barn, and toits end is attached a'horse.

The operationof this improvement .is as follows: The loader, taking the fork in hand, throws the tines into the point by pressing down the lever c; in

this position he inserts'it'into the hay, and throws out the tines by raising the lever c into the'head of; the fork, in which position it is secured by dropping the latch h into place.

When the. loaded -fork hasfreached the carrier, its trip-rod t' striking it, raises the latch, which leaves the tines free to drop into the point, and the load is.

dumped.

Where a fixed pulley is used-in the roof of the barn, a tripping line may beattached to the latch and operated in the usual manner, the latch being provided with a ring for that purpose.

-What I claim as my invention, and'desire to se# 'Theharpoon-fork A, provided lwith tines b,'links c, rod d, lever e, link g, latch h, and trip i, wheneach of said parts is constructed as described and all are ar ranged to operate as and for the purposes set forth. HENRY G. PORTER.

Witnesses:

J. W. RANsoM, E. P. FITCH. 

